Derek Terrell, Psychiatric Nurse Practitioner works in the Needham, MA office at LifeStance. Areas of Expertise: ADHD, Alcohol and Drug Use Issues, Anxiety, Bipolar Disorder, Childhood Behavior Issues, Depression, Grief, Obsessive Compulsive Disorder (OCD), Psychosis/Schizophrenia, PTSD/Trauma, Sleep Disorders/Insomnia. Ages seen: 11-14, 15-17, 18-21, 22-26, 27-40, 41-64, 65+. Take the first step towards improved mental health. Call or book online today.